74.5 g of KCl was dissolved in 1000. mL of water. What is the

molality of the solution? (Molar mass of KCI = 74.5 g/mol)

m.

An example of a scientific law is the law of conservation of mass, which states that matter is neither created nor destroyed in a chemical reaction.

What three thing does earth revolution causes?

In the following reaction, how many liters of oxygen will produce 15.67 liters of CO2 at STP? C2H4 (g) + 3O2 (g) 2CO2 (g) + 2H2O (g) 5.22 liters 7.84 liters 10.45 liters 23.50 liters 88.00 liters

After 5 trials from ronald and Maria calculate the experiment disagree of aluminum to be 2.54 g centimeter square if the actual density of aluminum is 2.7 g center cubic what is a percentage error rounded to the nearest whole number

A centrifuge was used to separate a sample into its components. What conclusion about the sample can be formed based on the technique used? It was a pure substance. It was a compound. It was a heterogeneous mixture. It was a homogeneous mixture

What kind of waves do cellar telephones use to transmit amend recive signals

Which process is a physical change? A. iron rusting B. milk turning to curd C. water boiling D. paper burning E. hard water staining pipes

1. How much calcium oxide would be made by the thermal decomposition of 25 grams of calcium carbonate? CaCO3 - > CaO + CO2 2. How much oxygen gas can be produced through the decomposition of potassium chlorate (KClO3) if 194.

Ethanol contains the elements carbon, hydrogen, and oxygen. When ethanol burns, it chemically reacts with oxygen gas. C2H6O + O2 ethanol oxygen gas What elements will be present in the substances that are created when ethanol burns? A.

What are the errors in the table